Noiseless device of manoeuvrable submarine screw-propeller

IPC classes for russian patent Noiseless device of manoeuvrable submarine screw-propeller (RU 2469905):

B63H1 - MARINE PROPULSION OR STEERING (propulsion of air-cushion vehicles B60V0001140000; peculiar to submarines, other than nuclear propulsion, B63G; peculiar to torpedoes F42B0019000000)

B63G8 - Underwater vessels, e.g. submarines (submarine hulls B63B0003130000; diving chambers with mechanical link, e.g. cable, to a base B63C0011340000; divers' sleds B63C0011460000; torpedoes F42B0019000000)

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FIELD: transport.

SUBSTANCE: device of manoeuvrable submarine screw-propeller includes submarine body, driving shaft, screw propeller on telescopic shaft with hub and with curved ends of blades, circular cavity, sound-proofing steering tube. The screw propeller is installed on brackets in tube cavity and pivotally connected with driving shaft. Inner and outer surfaces of tube are covered with viscoelastic damping material, with cavity covering with wear-resistant material layer. End of the tube is provided with flange. Bodies of four hydrodraulic (pneumatical) cylinders-manipulators are rigidly fixed along flange perimetre at equal distances. Rods of cylinders-manipulators are pivotally attached to disk eccentrics. Platform with movably attached eccentrics is installed on body. Driving shaft of submarine passes through passageway in the centre of the platform.

EFFECT: higher submarine maneuverability and suppression of noise from screw propellers.

1 dwg

The invention relates to the field of water transport, to underwater vehicles - underwater boats.

A device of the propeller, containing the boat hull, drive shaft, propeller with the hub, the propeller blades to the hub with curved ends in the internal offset cruciform annular cavity.

The aim of the invention is the elimination of noise of propellers, increasing the maneuverability of the submarine.

The proposed solution includes: drive shaft 1, extending from the lower rear part of the hull of the submarine 1A passing through the penetration hole in the center of the platform 2, is installed on the hull of the submarine is connected by a hinge 3 with telescopic shaft 4 screws with the cavity of the clutch parts, mounted movably on the brackets 5 and 6 in the Central part of the diameter of the cavity armored cylindrical soundproofing steering tube 7, ending rowing with curved ends by screws 8 to the hub. Figure 1 is given a schematic representation of a section of pipe with the shaft of the screw with the option of possible deviation of its relative axial line, which is provided on the entire surface of the viscoelastic damping material 9, the inner part - the same material 9, the internal cavity in the material 9 is fixed wear-resistant layer material 10. Pipe end 7 facing towards the stern has a flange 1, which at equal distances around the perimeter rigidly fixed their grounds buildings four hydro(pneumatic)cylinder arm 12, which his four rods attached to the platform 2 (installed on the housing via the hinge 13 and movably attached to the platform four eccentric disk 14.

The device operates as follows: the drive shaft 1 of the submarine through the hinge 3 results in rotational movement of the shaft 4 with the rowing screw 8, which is due to sagnotti their ends in the direction of rotation (FWD stroke submarine) reduces the intensity of the surges in the internal cavity of soundproofing and a steering tube 7, they oppose it contains wear-resistant material layer 10, and a viscoelastic damping material 9 suppresses noise jangling ends of the propeller 8. The flange 11 of the tube 7 is fixed in the end of the tube mounted thereon pneumatic(hydraulic)cylinders, the arms 12, his rod through the hinge 13 abutting the eccentric disk 14, turn them to the desired degree of rotation under the influence of the rods, when the variable inclinations pipe 7, thus eliminating the jamming of the pneumatic drive manipulators 12 at changes of direction of movement of the boat.

Prior art as analogue of the invention passed the patent RU 2390463 C1, application 2008150657/11; 23.12.2008 author, Pat is tabledata Carilina S.N. The invention: "propeller for surface and underwater vehicles". A similar set of features of this patent, the claimed technical solution is the presence of the drive, the drive shaft of the propeller with the hub of the screw.

As has also adopted a similar patent RU 2130403 C1, application 97104857/28; 27.03.1997, patentee CRI them. Acad. Krylov A.N. The invention: "Marine propulsion". A similar set of features of this patent, the claimed technical solution is the presence of the drive, the drive shaft of the propeller with the hub of the screw.

As a prototype adopted patent RU 2301761 C1, application 2006103728/11; 08.02.2006, author Zemlyakov, NV, patentee: Orel state technical University. The invention: "propeller with a guide nozzle design Zemlyakov". A similar set of features of this patent claimed is that the invention is a propulsion system for underwater transportation and contains a drive shaft, a propeller with a hub and curved blades, the annular cavity.

Disclosure of the invention is as follows: when the task is to remove the noise of propellers submarine, to increase its flexibility - the invention differs from the prototype in that it gives silencing effect running in the cavity of the screw steering soundproofing, bronia the Anna pipe, covered inside and outside of viscoelastic damping material. Propeller reduces the force of the hydraulic shock in the inner cavity of the tube. Besides these beats counterbalance to the existing wear-resistant top layer cavity of the tube. Together, these technical solutions will absorb the ringing sound of the screws that is not provided in the technical solution of the prototype ring cavity, viscoelastic inserts on the surface of the blades of propellers, the proposed technical solutions analogues to eliminate noise, are rarely used because of their low operating resources and solution level is the main task. In solving the problem of the invention is the maneuverability of the submarine - technical result is achieved due to the power and opportunities used in the present invention pneumatic(hydraulic)cylinder-manipulators. Managed by the navigators Spetsavtomatika connected by hinges with soundproofing steering pipe, they are able when you need to quickly change the incline of this pipe it to change the direction of the submarine, an additional factor maneuverability of the submarine is much windage as the pipe itself.

These essential characteristics, different from the above analogs and prototypes, achieve a positive result.

Positive technical the ski results in the implementation of the invention can be obtained in a simple alteration even in operation of submarines. This will require: mechanical hardening places of the body of the submarine is the location of the drive shaft, propeller, for example, riveted-and-welded joint with him the platform on which you want to consolidate four pneumatic(hydraulic)cylinder, connecting hinges, soundproofing steering tube; a drive shaft pivotally connected with the propeller shaft rigidly mounted in the cavity of the specified pipe, covered inside and outside of viscoelastic damping material; the contact - shock water from the propeller to cover more wear-resistant material; hinge-connected drive shaft and the shaft of the screw cover flexible streamlined bellows.

To a particular function provided by the invention is the improvement of combat readiness of the submarine.

The device of the propeller maneuverable submarine containing the boat hull, drive shaft, propeller with hub with curved ends of the blades, the annular cavity, wherein the sound absorbing steering tube includes a propeller on the telescopic shaft mounted on the bracket in its cavity, the hinge is fastened to the drive shaft, coating of the inner cavity and the external surface of the viscoelastic damping material, coated it in the cavity with a layer of wear-resistant material, the pipe end provided with a flange is m, which at equal distances around the perimeter is rigidly fixed to their bases corps four hydro(pneumatic)cylinder-manipulators, the rod of which is pivotally attached to the disk excentricum, which are movably attached to the platform installed on the housing, passing through the hole in the center of the platform passes the drive shaft of the submarine.